@font-face {
  font-family: "iconfont";
  src: url('../fonts/icons/iconfont.eot') format('embedded-opentype'),
  url('../fonts/icons/iconfont.woff') format('woff'),
  url('../fonts/icons/iconfont.ttf') format('truetype'),
  url('../fonts/icons/iconfont.svg') format('svg');
}

html, body {
  width: 100%;
  height: 100%;

  background-color: #222;
}

.add {
  width: 100%;
  height: 100%;
}

/* stage -- start */
.stage {
  position: relative;

  width: 100%;
  height: 900px;
}

/* stage -- end*/

/* image -- start*/
.img-sec {
  position: relative;

  width: 100%;
  height: 100%;
  overflow: hidden;

  background-color: #ddd;

  perspective: 1800px;

  @at-root {
    .img-figure {
      position: absolute;

      width: 280px;
      height: auto;
      margin: 0;
      padding: 30px;

      background-color: #fff;

      box-sizing: border-box;
      cursor: pointer;
      transform-origin: 0 50% 0;
      transform-style: preserve-3d;
      transition: transform .6s ease-in-out, left .6s ease-in-out, top .6s ease-in-out;

      &.is-inverse {
        transform: translate(280px) rotateY(180deg);
      }

      img {
        display: block;
        width: 100%;
        height: auto;
      }
    }

    figcaption {
      text-align: center;

      .img-title {
        margin: 20px 0 0 0;

        color: #a7a0a2;

        font-size: 14px;
      }
      .img-back {
        position: absolute;
        left: 0;
        top: 0;

        width: 100%;
        height: 100%;
        padding: 50px 40px;
        overflow: auto;

        background-color: #fff;

        box-sizing: border-box;
        transform: rotateY(180deg);
        backface-visibility: hidden;

        p{
          margin: 0;
        }

      }
    }
  }
}

/* image -- end*/

/* controller -- start */
.controller-nav {
  position: absolute;
  left: 0;
  bottom: 30px;
  z-index: 101;

  width: 100%;

  text-align: center;

  @at-root {
    .controller-unit {
      display: inline-block;
      width: 30px;
      height: 30px;
      margin: 0 5px;

      text-align: center;
      vertical-align: middle;

      cursor: pointer;
      background-color: #aaa;
      border-radius: 50%;

      transform: scale(.5);
      transition: transform .6s ease-in-out, background-color .3s;

      &.is-center {
        background-color: #888;

        transform: scale(1);

        &::after {
          color: #fff;
          font-family: "iconfont";
          line-height: 30px;

          content: "\e906";

          -webkit-font-smoothing: antialiased;
          -moz-osx-font-smoothing: grayscale;
        }
        &.is-inverse {
          background-color: #555;

          transform: rotateY(180deg);
        }
      }
    }
  }
}

/* controller -- end */
